CDM-A108

Name: CDM-A108
Brand: Campbell Scientific
SKU: 29380
Availability: Discontinued

8-Channel 5 V Analog Input Module

CDM-A108

RetiredConfigurable

8-Channel 5 V Analog Input Module

Pricing

Configuration

CDM-A108 8-Channel 5V Analog Input ModuleCDM-A108
CDM-A108-ST-SW 8-Channel 5V Analog Input Module -ST -40 to +70C -SW Standard 1yr WarrantyCDM-A108-ST-SW
CDM-A108-XT-XW 8-Channel 5V Analog Input Module -XT -55 to +85C -XW 4yr Warr ExtensionCDM-A108-XT-XW
CDM-A108-XT-SW 8-Channel 5V Analog Input Module -XT -55 to +85C -SW Standard 1yr WarrantyCDM-A108-XT-SW
0 to +70C -XW 4yr Warr ExtensionCDM-A108-ST-XW

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Model:: CDM-A108
Item Number:: 29380
Warranty:: 1 year
Lead time:: 30 days

Overview

CDM-A108 8-Channel 5V Analog Input Module

The CDM-A108 is an analog input module that allows you to easily expand your Campbell Scientific data logging system. The CDM-A108 features a 24-bit, analog-to-digital converter and a low-noise, analog front-end to provide you with superior analog measurements. This module also supports period average measurements and includes both current and voltage excitation channels.

The CDM-A108 has eight differential inputs and two excitation channels. It provides both a 12 V and a switched 12 V port for powering your peripherals and two switched 5 V ports for peripheral control.

Key Advantages

24-Bit Resolution
Greatly increases sensor capacity

Technical Description

The CDM-A108 offers 24-bit sigma-delta Adc with 16 user programmable notch frequencies from 30,000 Hz to 2.5 Hz, including 50 and 60 Hz. Previous generations of data loggers could notch out 50 or 60 Hz.

Benefits

Ability to make simultaneous measurements
CANbus 2.0A/2.0B capable; contact Campbell Scientific for details
Increases the number of analog channels in a data logger system
Supports period average measurements
Includes both current and voltage excitation channels

Specifications

-NOTE-: Additional specifications are listed in the CDM-A108 and CDM-A116 brochure.
Power Requirements: 9.6 to 32 Vdc voltage
Mounting: Standard 1-in. grid
(DIN rail mounting available)
Estimated Accuracy: ±(0.04% of reading + offset)
0° to 40°C
Estimated Accuracy: ±(0.06% of reading + offset)
-40° to +70°C
Estimated Accuracy: ±(0.08% of reading + offset)
-55° to +85°C
Number of Channels: 8 differential or 16 single-ended
Operating Temperature Range: -40° to +70°C
(standard)
Operating Temperature Range: -55° to +85°C
(extended)
Maximum Multiplexed Sample Rate: 3.0 kHz
(using fast [100 μs] input setting)
Maximum Burst Sample Rate: 30 kHz
Input Range: ±5000 mV, ±1000 mV, and ±200 mV
Period Averaging: Traditional period averaging on analog input channels
CPI: For data logger connection. Baud rate selectable from 50 kbps to 1 Mbps.
(Allowable cable length varies depending on baud rate, number of nodes, cable quality, and noise environment, but can be as long as 700 m under proper conditions.)
USB: USB 2.0 full speed connection available for attaching to a PC.
(Port is used to configure the module and download updates via our Device Configuration Utility.)
Warranty: One year against defects in materials and workmanship
Dimensions: 20.3 x 12.7 x 5.1 cm
(8 x 5 x 2 in.)
Weight: 0.8 kg
(1.75 lb)

Typical Current Drain

Sleep: <1 mA
Active 1 Hz Scan: 2 mA
(estimated)
Assumes one single-ended measurement with the first notch frequency (f_N1) at 30 kHz
Active 20 Hz Scan: 20 mA

Assumes one single-ended measurement with the first notch frequency (f_N1) at 30 kHz